CRED Cumulative Map of Percent Scleractinian Coral Cover at Johnston Atoll, 2004

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What does this data set describe?

Title:
CRED Cumulative Map of Percent Scleractinian Coral Cover at Johnston Atoll, 2004
Abstract:
This map displays optical validation observation locations and percent coverage of scleractinian coral overlaid on bathymetry.
Supplemental_Information:
Johnston, a low-lying, 130 sq.km. atoll in the Pacific Remote Island Area (PRIA), is the northernmost member of the Line Islands and is centered around 16.45'N 169.31'W. Its total land area is 2.67 sq.km. Although Johnston was uninhabited at the time of its discovery by Western sailors, Polynesians probably visited it periodically over many centuries to harvest fish and wildlife. The lack of human habitation allowed Johnston's coral reefs to remain completely pristine until the early 20th century. Even today it lies beyond the influence of urban centers, associated pollutants and major shipping lanes. In 1858, Johnston was claimed by the U.S. under the Guano Act. During World War II, the U.S. constructed and occupied a military base at Johnston, adding substantially to the size of the main island using dredged material. After World War II the base was used as a nuclear weapons test site, a chemical weapons incineration and disposal site, and missile test facility. The military base was closed in 2004, and is currently managed by the Department of Defense. Ocean currents transport and distribute larvae among and between different atolls and islands, and particularly in the Pacific equatorial region, define sea surface temperatures (SSTs) and available nutrient regimes. The North Equatorial Current (NEC), Equatorial Counter Current (ECC), Equatorial Undercurrent or Cromwell Current (EUC), and South Equatorial Current (SEC) provide the mechanism by which many species are distributed among the PRIAs, nearby central Pacific islands, the main Hawaiian Islands (MHI), as well as other distant regions. Cruises CoRIS Metadata Record Names OES0401 cred_toad_johnston_2004

Resource Description: Digital video images that are geo-referenced to navigation files.

  1. How might this data set be cited?
    Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), 200705, CRED Cumulative Map of Percent Scleractinian Coral Cover at Johnston Atoll, 2004.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -169.60
    East_Bounding_Coordinate: -169.33
    North_Bounding_Coordinate: 16.81
    South_Bounding_Coordinate: 16.64
  3. What does it look like?
    http://www.soest.hawaii.edu/pibhmc/PRIAs_images/joh_toad_445px.jpg (JPEG)
    This map displays optical validation observation locations and percent coverage of scleractinian coral overlaid on bathymetry.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 2004
    Ending_Date: 2004
    Currentness_Reference: ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: digital image
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
    2. What coordinate system is used to represent geographic features?
  7. How does the data set describe geographic features?

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
  2. Who also contributed to the data set?
    Benthic Habitat Mapping Group, Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), NOAA
  3. To whom should users address questions about the data?
    Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
    Attn: John Rooney
    NOAA IRC
    Honolulu, HI

    808 725-5360 (voice)
    808 725-5429 (FAX)
    nmfs.pic.credinfo@noaa.gov
    Contact_Instructions: e-mail preferred

Why was the data set created?

To display locations of optical validation data collected and percent coverage of scleractinian coral at Johnston Atoll.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_Constraints:
Please acknowledge the NOAA Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center as the source of this information.
  1. Who distributes the data set? (Distributor 1 of 1)
    Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
    Attn: John Rooney
    NOAA IRC
    Honolulu, HI

    808 725-5360 (voice)
    808 725-5429 (FAX)
    nmfs.pic.credinfo@noaa.gov
    Contact_Instructions: e-mail preferred
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    These data are not to be used for navigational purposes. NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 29-Mar-2020
Last Reviewed: 05-Sep-2008
Metadata author:
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
Attn: CRED Data Management Team
NOAA IRC
Honolulu, HI

808 725-5360 (voice)
808 725-5429 (FAX)
nmfs.pic.credinfo@noaa.gov
Contact_Instructions: e-mail preferred
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

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